2031901 has 4 divisors (see below), whose sum is σ = 2066400. Its totient is φ = 1997404.

The previous prime is 2031893. The next prime is 2031907. The reversal of 2031901 is 1091302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1091302 = 2 ⋅545651.

It is a cyclic number.

It is not a de Polignac number, because 2031901 - 2³ = 2031893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17161 + ... + 17278.

It is an arithmetic number, because the mean of its divisors is an integer number (516600).

2^2031901 is an apocalyptic number.

It is an amenable number.

2031901 is a deficient number, since it is larger than the sum of its proper divisors (34499).

2031901 is an equidigital number, since it uses as much as digits as its factorization.

2031901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34498.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2031901 is about 1425.4476489861. The cubic root of 2031901 is about 126.6584536072.

The spelling of 2031901 in words is "two million, thirty-one thousand, nine hundred one".